A Phase II Study of Biodegradable Stents Plus Palliative Radiotherapy in Oesophageal Cancer

Area of Science:

• Gastroenterology
• Oncology
• Biomaterials Science

Background:

• Self-expanding metal stents offer rapid dysphagia relief in esophageal cancer but carry risks.
• Biodegradable stents present a potential alternative for managing esophageal cancer complications.

Purpose of the Study:

• To evaluate the efficacy of combining biodegradable stents with radiotherapy as an alternative treatment for dysphagia in patients with esophageal cancer unsuitable for radical therapy.

Main Methods:

• A Simon two-stage, single-arm prospective phase II trial was conducted.
• Twelve patients with esophageal cancer-induced dysphagia were included in the final analysis.

Main Results:

• Five out of 12 patients met the primary endpoint, indicating high failure rates.
• A significant proportion (41.7%) required further interventions for dysphagia within 16 weeks.
• The median time to a 10-point deterioration in quality of life was 2.7 weeks.

Conclusions:

• The combination therapy did not meet efficacy criteria for larger trials due to high re-intervention rates.
• Biodegradable stents' role in managing malignant esophageal strictures requires further investigation.